4203961 has 2 divisors, whose sum is σ = 4203962. Its totient is φ = 4203960.

The previous prime is 4203931. The next prime is 4203967. The reversal of 4203961 is 1693024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2190400 + 2013561 = 1480^2 + 1419^2 .

It is a cyclic number.

It is not a de Polignac number, because 4203961 - 2⁵ = 4203929 is a prime.

It is a d-powerful number, because it can be written as 4¹¹ + 2¹³ + 0 + 3⁶ + 9³ + 6 + 1 .

It is not a weakly prime, because it can be changed into another prime (4203967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2101980 + 2101981.

It is an arithmetic number, because the mean of its divisors is an integer number (2101981).

Almost surely, 2^4203961 is an apocalyptic number.

It is an amenable number.

4203961 is a deficient number, since it is larger than the sum of its proper divisors (1).

4203961 is an equidigital number, since it uses as much as digits as its factorization.

4203961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 4203961 is about 2050.3563104983. The cubic root of 4203961 is about 161.3935692285.

Adding to 4203961 its reverse (1693024), we get a palindrome (5896985).

The spelling of 4203961 in words is "four million, two hundred three thousand, nine hundred sixty-one".